Medics carry an injured woman on a stretcher to an ambulance after a suspected suicide bomber detonated an explosive device at the entrance of the U.S. Embassy in the Turkish capital, Ankara, Turkey, Friday Feb. 1, 2013. The bomb appeared to have exploded inside the security checkpoint at the entra

/ AP

Medics carry an injured woman on a stretcher to an ambulance after a suspected suicide bomber detonated an explosive device at the entrance of the U.S. Embassy in the Turkish capital, Ankara, Turkey, Friday Feb. 1, 2013. The bomb appeared to have exploded inside the security checkpoint at the entrance of the visa section of the embassy. A police official said at least two people are dead. (AP Photo/Burhan Ozbilici)

Medics carry an injured woman on a stretcher to an ambulance after a suspected suicide bomber detonated an explosive device at the entrance of the U.S. Embassy in the Turkish capital, Ankara, Turkey, Friday Feb. 1, 2013. The bomb appeared to have exploded inside the security checkpoint at the entrance of the visa section of the embassy. A police official said at least two people are dead. (AP Photo/Burhan Ozbilici) (/ AP)